ASoC: cs42xx8: fix the noise in the right dac channel with mono playback

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When playback mono wav with record in background, there will be some
nosie in the right dac channel. It seems that the ADC data has been
routed to the dac channel.

The cs42888 have 8 dac channels, it's appropriate to mute the unused
dac channels, and the noise will disappear.

Steps to reproduce this issue:
arecord -D hw:0,0 -f S16_LE -r 48000 -c 1 a.wav &
aplay -Dhw:0,0 audio48k16M.wav

Signed-off-by: Zidan Wang <zidan.wang@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Zidan Wang 2015-11-24 10:18:27 +08:00 • committed by Mark Brown

parent 92e963f50f

commit 1f1e60c9cd

1 changed files with 8 additions and 2 deletions

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sound/soc/codecs/cs42xx8.c

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